TW201608210A - Measuring device - Google Patents

Abstract

A measuring device includes a support frame, and a measurement and at least one measuring arm mounted to the support frame. The support frame includes a first support arm, a liking rod and a poke rod rotationally mounted to one end of the first support arm, an elastic member connected to one end of the liking rod and the first support arm, and a second support arm extended from the first support arm along a pre-determined angle. The measurement includes a case and a measure rod passed through the case. The case is used for measuring a distance of the measure rod moving. One end of the measure rod is connected to the other end of the liking rod, the other end of the measure rod includes a moved measuring head. The measuring arm includes a fixed measuring head arranged coaxially with the moved measuring head. The measurement is used for measuring a distance between the fixed measuring head and the moved measuring head. The poke rod includes a poke portion and a resisting portion connected to the poke portion along a pre-determined angle. When the poke portion is pulled towards the first support arm, the resisting portion can resist against the end of the liking rod connected to the elastic member, and the liking rod rotates to allow the measure rod move.

Description

Measuring device

The present invention relates to a measuring device, and more particularly to a lever type measuring device.

In the process of injection molding/casting and machining of parts, it is often necessary to measure the thickness and size of the 3D surface residual material to check whether the workpiece is qualified.

Nowadays, the prior art uses a caliper or a micrometer to measure the total thickness dimension of the workpiece first, and then measures the depth of the hole/groove, and the thickness of the workpiece residual material is obtained by subtracting the two measured values. However, there are many measurement steps and the measurement is complicated. In addition, since the shape of the workpiece is a 3D curved surface, when the caliper or the micrometer is used, the curvature of the curved surface may result in inaccurate measurement and large measurement error.

To this end, the present invention provides a measuring device that is accurate in measurement and convenient to use.

A measuring device includes a support frame and a measuring meter mounted on the support frame, the measuring device further comprising at least one measuring arm mounted on the support frame. The support frame includes a first support arm, a connecting rod and a lever that are rotatably mounted at one end of the first support arm, and an end of the connecting rod and the elastic member of the first support arm and the other end of the first support arm are respectively predetermined A second support arm that extends outwardly at an angle. The measuring table comprises a measuring body and a measuring shaft which is elastically disposed inside the body, the body is used for displaying the moving distance of the measuring shaft, the head of the measuring shaft is connected to the other end of the connecting rod, and the measuring head is provided with a moving probe at the tail. . A fixed probe that is placed coaxially with the moving probe is mounted on the measuring arm. The lever includes a dial portion and a resisting portion that is connected to the dial portion at a predetermined angle. When the dialing portion is pulled in the direction of the first supporting arm, the lever rotates to cause the abutting portion to abut the end of the elastic member connected to the connecting rod, and the elastic member is elastically deformed so that the connecting rod rotates to drive the measuring shaft to move.

The support frame of the measuring device of the present invention comprises a first supporting arm, a connecting rod and a lever which are rotatably mounted on one end of the first supporting arm, and an elastic member which is respectively connected to the connecting rod and the first supporting arm; On the support frame, a mobile probe is mounted on the tail, a fixed probe is mounted on the measuring arm, and the mobile probe is coaxially arranged with the fixed probe. The meter can measure the distance the moving probe moves. Pulling the lever, the lever abuts the connecting rod, and the connecting rod drives the moving probe to move along the axial direction of the measuring shaft. The moving probe cooperates with the fixed probe to measure the thickness of different planes or curved surfaces, and the measurement is accurate and the operation is simple. .

FIG. 1 is a perspective view of a measuring device according to an embodiment of the present invention with a measuring arm mounted thereon.

FIG. 2 is a schematic perspective view showing another measuring arm mounted on a measuring device according to an embodiment of the present invention.

Figure 3 is an exploded perspective view of the measuring device shown in Figure 1.

Figure 4 is an exploded perspective view of the measuring device shown in Figure 2.

Fig. 5 is a schematic view showing the principle of use of the measuring device shown in Fig. 1.

Fig. 6 is a schematic view showing the principle of use of the measuring device shown in Fig. 2.

Embodiments in accordance with the present invention will be described with reference to the drawings. The drawings are simplified schematic diagrams, and only the basic structure of the present invention is illustrated in a schematic manner, and thus only the configurations related to the present invention are shown.

Referring to FIG. 1 and FIG. 2 , a measuring device 100 according to an embodiment of the present invention includes a support frame 10 , a measuring table 20 that is snap-fitted on the support frame 10 , and a measuring arm 30 that is fixedly mounted on the lower portion of the support frame 10 . The measuring arm 30 includes a plurality of options, and the measuring arms 30 of different lengths can be selected according to the needs of different measuring positions. In the present embodiment, the measuring arm 30 includes a first measuring arm 31 having a long arm length and a second measuring arm 32 having a short arm length.

Referring to FIG. 3 and FIG. 4 , the support frame 10 includes a first support arm 11 , a connecting rod 12 rotatably mounted on one end of the first support arm 11 , and a lever 13 . The two ends are respectively connected to the connecting rod 12 and the first supporting arm 11 . The upper elastic member 14 and the second support arm 15 formed by the other end of the first support arm 11 extending outward at a predetermined angle.

One end of the first support arm 11 is recessed toward the intermediate position to form a receiving groove 111 for receiving and mounting the connecting rod 12 and the lever 13. The first through hole 112 and the second through hole 113 are respectively defined in the top end and the middle position of the receiving groove 111. The first pin shaft 114 and the second pin shaft 115 can be respectively disposed through the first through hole 112 and the second through hole. In the 113, the connecting rod 12 and the lever 13 are respectively fixed by the first pin shaft 114 and the second pin shaft 115, and are rotatably connected in the receiving groove 111. The other end of the first support arm 11 is provided with a plurality of circular holes 116 for conveniently holding the first support arm 11. At the same time, the plurality of circular holes 116 can reduce the consumables of the measuring device 100 and reduce the weight of the measuring device 100. A third through hole 117 is defined in the other end of the first support arm 11 at a position close to the receiving groove 111. The third pin 118 is inserted into the third through hole 117 for fixing one end of the elastic member 14.

The connecting rod 12 includes a flat plate 121 and a convex portion 122 which is formed to protrude outward from a central position of the flat plate 121. One end of the flat plate 121 is provided with a U-shaped card slot 1211, and the other end is provided with a first fixing hole 1212. The other end of the elastic member 14 is fixed to the first fixing hole 1212. A second fixing hole 1221 is defined in the protruding portion 122, and the protruding portion 122 is received in the receiving groove 111. The second fixing hole 1221 is disposed coaxially with the first through hole 112, and the first pin shaft 114 passes through the first step. A through hole 112 and a second fixing hole 1221 are fixed to the first support arm 11 and the link 12 is rotatable relative to the first pin 114.

The lever 13 is substantially S-shaped and includes a dial portion 131 and a resisting portion 132 that is connected to the dial portion 131 at a predetermined angle. A fixing hole 133 is opened at a joint between the dial portion 131 and the abutting portion 132. The lever 13 is received in the receiving slot 111, and the fixing hole 133 is coaxially disposed with the second through hole 113. The second pin 115 sequentially passes through the second through hole 113 and the fixing hole 133 to fix the lever 13 to The first support arm 11 is mounted and the lever 13 is rotatable relative to the second pin 115.

Two ends of the elastic member 14 are respectively provided with a hanging loop 141. One end of the elastic member 14 is hung on the first fixing hole 1212 by the hanging ring 141, and the other end is hung on the third pin shaft 118 by the hanging ring 141, thereby elastically stretching one end of the connecting rod 12.

The second support arm 15 is for mounting and fixing the first measuring arm 31 and the second measuring arm 32, and a threaded hole 151 is formed on a side away from the end of the first supporting arm 11. A measuring table receiving hole 152 is defined in the second supporting arm 15 for receiving the partial measuring table 20, and the measuring table receiving hole 152 is vertically connected with the threaded hole 151. The stud 153 is rotated into the gauge receiving hole 152 by the screw hole 151 to hold the fixed gauge 20 in abutment. The second support arm 15 is sequentially provided with a through hole 154 and a positioning hole 155 at a position close to the measuring table receiving hole 152 for fixing the second measuring arm 32. The second support arm 15 defines a first recess 156 on the lower surface of the corresponding through hole 154 and the positioning hole 155 for assisting in positioning the second measuring arm 32. The second support arm 15 is provided with a second recess 157 at a position connected with the first support arm 11. The second recess 157 is provided with a threaded hole and a positioning hole (not shown) for positioning and mounting the first measuring arm 31.

The measurement table 20 is a digital display measurement meter whose measurement accuracy can select different measurement gear positions according to different measurement requirements. The measuring table 20 is mounted on the support frame 10 and includes a body 21 and a measuring shaft 22 that is elastically disposed in the body 21. The body 21 includes a digital display 211 and a button 212. The display screen 211 is capable of displaying measurement data in digital form. The trigger button 212 can zero the data on the display screen 211. A ring 213 is disposed at an upper end of the body 21, and a sleeve 214 is connected to a position corresponding to the ring 213 at a lower end of the body 21 for partially accommodating the measuring shaft 22. The measuring shaft 22 includes a head 221 and a tail 222. The size of the head 221 is larger than the size of the measuring shaft 22 to prevent the measuring shaft 22 from falling out of the body 21. It can be understood that the head 221 can be a blocking piece and is mounted on the measuring shaft 22 by screw rotation. A mobile probe 2221 is mounted on the tail 222 for assisting in measuring data. The measuring shaft 22 is elastically received in the body 21, and the tail portion 222 enters the body 21 from the ring 213 and is passed through the sleeve 214. Under normal conditions, the head 221 of the measuring shaft 22 is elastically resisted on the ring 213, and the display material 211 displays zero data; when the head 221 is pulled up, the display screen 211 shows the distance that the head 221 moves; At the beginning portion 221, due to the elastic force of the measuring table 20 itself, the measuring shaft 22 returns to the initial position, and the head portion 221 is elastically resisted on the ring 213, and the data displayed on the display screen 211 is returned to zero. It can be understood that in other embodiments, the measurement table 20 can also be a mechanical gauge, one end of which is engaged in the card slot 1211 and the other end has a moving probe.

The first measuring arm 31 is substantially L-shaped and includes an overhanging portion 311 and a mounting portion 312 that is connected at substantially right angles to the overhanging portion 311. The extending portion 311 has a long length, and the receiving end 3112 is fixedly mounted in the receiving hole 3111. The fixed probe 3112 cooperates with the moving probe 2221 to measure the distance between the fixed probe 3112 and the moving probe 221. One end of the mounting portion 312 is received in the second recess 157, and the end is provided with a through hole 3121 and a positioning hole 3122 respectively at positions corresponding to the threaded holes and the positioning holes in the second recess 157. The second groove 157 serves to restrict the first measuring arm 31 from moving in a direction parallel to the extending direction of the second supporting arm 15. The two ends of the positioning pin 3123 are respectively received in the positioning hole in the second groove 157 and the positioning hole 3122 of the first measuring arm 31 to limit the plane of the first measuring arm 31 on the first supporting arm 11 and the second supporting arm 15 Move in the vertical direction. The second groove 157 is combined with the positioning pin 3123 to position the first measuring arm 31 such that the fixed probe 3112 and the moving probe 2221 are on the same axis. The stud 3124 passes through the through hole 3121 and is rotated into the threaded hole of the second groove 157, thereby fixing the first measuring arm 31 to the second supporting arm 15.

The second measuring arm 32 is substantially S-shaped and includes a mounting portion 321 , a connecting portion 322 that is connected at substantially right angles to the mounting portion 321 , and an overhang portion 323 that is connected at substantially right angles to the connecting portion 322 . The mounting portion 321 is received in the first recess 156, and the mounting portion 321 defines a threaded hole 3211 and a positioning hole 3212 at positions corresponding to the through hole 154 and the positioning hole 155 of the first recess 156. The two ends of the positioning pin 3213 are respectively received in the positioning hole 155 of the second supporting arm 15 and the positioning hole 3212 of the second measuring arm 32. The stud 3214 passes through the through hole 154 and is rotated into the threaded hole 3211 of the second measuring arm 32, thereby fixing the second measuring arm 32 to the second supporting arm 15. Both ends of the connecting portion 322 extend substantially perpendicularly outward to form a mounting portion 321 and an overhang portion 323, and the mounting portion 321 and the overhang portion 323 are respectively located at two sides of the connecting portion 322. The extension portion 323 has a short length, and the outwardly extending end is provided with a receiving hole 3231, and the fixed probe 3232 is fixedly mounted in the receiving hole 3231. The first groove 156 is for restricting movement of the second measuring arm 32 in a direction parallel to the extending direction of the second support arm 15. The positioning pin 3213 is for restricting the movement of the second measuring arm 32 in the vertical direction of the plane in which the first support arm 11 and the second support arm 15 are located. The first groove 156 is combined with the positioning pin 3213 to position the second measuring arm 32, ensuring that the fixed probe 3232 is disposed coaxially with the moving probe 2221. The fixed probe 3232 cooperates with the moving probe 2221 to measure the distance between the fixed probe 3232 and the moving probe 2221.

Referring to FIG. 3 and FIG. 4 again, in the assembly, first, the lever 13 is received in the receiving groove 111, and the fixing hole 133 is coaxially disposed with the second through hole 113. Then, the second pin 115 is sequentially passed through the second through hole 113 and the fixing hole 133, the two ends of the second pin 115 are interference fit with the second through hole 113, and the lever 13 is rotatable relative to the second pin 115. . In addition, the boss portion 122 of the connecting rod 12 is received in the receiving groove 111, and the second fixing hole 1221 is disposed coaxially with the first through hole 112. Then, the first pin shaft 114 is sequentially passed through the first through hole 112 and the second fixing hole 1221. The two ends of the first pin shaft 114 are interference fit with the first through hole 112, and the connecting rod 12 can be opposite to the first pin shaft. 114 turns.

Next, the measuring shaft 22 of the measuring table 20 is pulled up and placed in the card slot 1211, and the head 221 is abutted against the card slot 1211. Then, the sleeve 214 is placed in the measuring meter receiving hole 152, and the stud 153 is rotated into the measuring meter receiving hole 152 by the screw hole 151, and is abutted on the sleeve 214, thereby fixing the measuring table 20 to the first position. Two support arms 15 are provided. In addition, the hanging ring 141 at one end of the elastic member 14 is hung on the first fixing hole 1212, and the hanging ring 141 at the other end is hung on the third pin shaft 118. Since the elastic pulling force of the elastic member 14 is greater than the elastic receiving force of the measuring shaft 22, the measuring shaft 22 is pulled up at this time, and the resisting portion 132 abuts against one end of the flat plate 121 near the first fixing hole 1212.

Then, according to the measurement requirement, the first measuring arm 31 or the second measuring arm 32 is selected, and the first measuring arm 31 or the second measuring arm 32 is mounted on the second supporting arm 15 by the cooperation of the stud and the threaded hole. At the same time, by positioning the positioning pin with the first groove 156 or the second groove 157, the fixed probe 3112 or the fixed probe 3232 is ensured to be on the same axis as the moving probe 2221.

Referring to FIG. 5, when the length of the to-be-measured groove 201 of the workpiece 200 to be tested is smaller than the length of the outer portion 311 of the first measuring arm 31, the first measuring arm 31 can be selected.

In use, first, the toggle portion 131 is pulled toward the first support arm 11 , and the lever 13 rotates with the second pin 115 as a fulcrum. The resist portion 132 abuts against the flat plate 121 and approaches the first fixing hole 1212 . One end. At this time, the connecting rod 12 rotates with the first pin shaft 114 as a fulcrum, and one end of the flat plate 121 with the card slot 1211 is moved downward. The measuring shaft 22 is retracted downward due to its own elastic force. After the pulling force acting on the dialing portion 131 is cancelled, the elastic member 14 resumes elastic deformation, and the flat plate 121 is pulled down to the end of the first fixing hole 1212, the flat plate 121 is rotated around the first pin shaft 114, and the measuring shaft 22 is pulled up. . Thus, the toggle portion 131 is repeatedly pulled a plurality of times to repeatedly contact the moving probe 2221 with the fixed probe 3112 (shown in FIG. 3) several times. Thereafter, the toggle portion 131 is pulled to keep the moving probe 2221 in contact with the fixed probe 3112, and the button 212 is triggered to clear the number on the display screen 211 to complete the setting of the zero position. After the zero position setting is completed, the dial portion 131 is released.

Next, the fixed probe 3112 is placed at the lower surface of the groove 201 to be tested of the workpiece 200 to be tested, and the fixed probe 3112 is abutted against the lower surface of the groove 201. Thereafter, the toggle portion 131 is pulled toward the first support arm 11 to move the mobile probe 2221 downward and abut against the upper surface of the recess 201, and the measuring device 100 is slightly swung back and forth, left and right, and the display screen 211 The minimum value shown above is the thickness dimension of the groove 201. After the measurement is completed, the dial portion 131 is released, and the measuring device 100 can be removed from the workpiece 200.

Referring to FIG. 6, when the workpiece 202 to be tested is provided with a hole 202 having a larger size, the second measuring arm 32 can be selected. In use, first, the measurement table 20 is set to the zero position as in the case of selecting the first measuring arm 31.

Next, the second measuring arm 32 is inserted into the workpiece 200 from the hole 202. In the same manner as the first measuring arm 31 is selected, the fixed measuring head 3232 (shown in FIG. 4) is abutted on the lower surface of the workpiece 200 to be tested. Pulling the toggle portion 131 in the direction of approaching the first support arm 11 to move the mobile probe 2221 downward and abut against the upper surface of the workpiece 200, slightly swinging the measuring device 100 back and forth, left and right, and displaying on the display screen 211 The minimum value is the thickness dimension of the workpiece 200 to be tested.

The measuring device 100 of the present invention includes a support frame 10, a measuring table 20 mounted on the support frame 10, and a measuring arm 30 fixedly mounted on the lower portion of the support frame 10. Firstly, the measuring arm 30 comprises a plurality of options, and the measuring arms 30 of different lengths can be selected according to the needs of different measuring positions, and the utility model is strong. Next, the support frame 10 includes a first support arm 11, a link 12 and a lever 13 rotatably mounted on one end of the first support arm 11 and an elastic member 14 respectively connected to the link 12 and the first support arm 11; The measuring table 20 is mounted on the support frame 10 and includes a body 21 and a measuring shaft 22 that is elastically disposed in the body 21. A measuring probe 2221 is mounted on the tail of the measuring shaft 22, and a fixed probe is mounted on the measuring arm 30, and the moving probe 2221 is coaxially disposed with the fixed probe. The meter 20 can display the distance between the mobile probe 2221 and the fixed probe. Pulling the lever 13, the lever 13 abuts the connecting rod 12, and the connecting rod 12 drives the moving probe 2221 to move up and down, thereby measuring the thickness of different planes or curved surfaces, and the measuring is accurate and the operation is simple.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by the person skilled in the art of the present invention should be included in the following claims.

100‧‧‧Measurement device

10‧‧‧Support frame

20‧‧‧Measurement

30‧‧‧Measurement arm

31‧‧‧First measuring arm

32‧‧‧Second measuring arm

11‧‧‧First support arm

12‧‧‧ Connecting rod

13‧‧‧Pole

14‧‧‧Flexible parts

15‧‧‧second support arm

111‧‧‧ Reception trough

112‧‧‧First through hole

113‧‧‧Second through hole

114‧‧‧first pin

115‧‧‧second pin

116‧‧‧ round hole

117‧‧‧ third through hole

118‧‧‧ Third pin

121‧‧‧ tablet

122‧‧‧ raised parts

1211‧‧‧ card slot

1212‧‧‧First fixing hole

1221‧‧‧Second fixing hole

131‧‧‧Driving Department

132‧‧‧Resistance Department

133‧‧‧Fixed holes

141‧‧‧ hanging loop

151, 3211‧‧ ‧ threaded holes

152‧‧‧Measuring table receiving hole

153, 3124, 3214‧‧ studs

154, 3121‧‧‧through holes

155, 3122, 3212‧‧ ‧ positioning holes

156‧‧‧first groove

157‧‧‧second groove

21‧‧‧ body

22‧‧‧Measurement axis

211‧‧‧ display screen

212‧‧‧ button

213‧‧‧ Ring

214‧‧‧ sleeve

221‧‧‧ head

222‧‧‧ tail

2221‧‧‧Mobile probe

311, 323‧ ‧ outreach

312, 321‧‧‧ Installation Department

3111, 3231‧‧‧ receiving holes

3112, 3232‧‧‧ fixed probe

3123, 3213‧‧‧ Locating pins

322‧‧‧Connecting Department

200‧‧‧Workpiece

201‧‧‧ Groove

202‧‧‧ hole

no

100‧‧‧Measurement device

10‧‧‧Support frame

20‧‧‧Measurement

30‧‧‧Measurement arm

31‧‧‧First measuring arm

Claims (10)

A measuring device comprising a support frame and a measuring meter mounted on the support frame, the improvement device comprising: the measuring device further comprising at least one measuring arm mounted on the support frame, the support frame comprising a first support arm and rotating mounted a connecting rod and a lever at one end of the first supporting arm, and an end of the connecting rod and an elastic member of the first supporting arm and an outer end extending outward from the other end of the first supporting arm at a predetermined angle a second supporting arm, the measuring table comprising a watch body and a measuring shaft elastically disposed inside the watch body, the watch body is for displaying a moving distance of the measuring shaft, and the head of the measuring shaft is connected to the connecting rod At one end, a tail of the measuring shaft is provided with a moving probe, and the measuring arm is mounted with a fixed probe coaxially disposed with the moving probe, the lever includes a dialing portion and abutting at a predetermined angle with the dialing portion When the dialing portion is pulled in the direction of the first supporting arm, the lever rotates to abut the abutting portion against the end of the connecting rod to which the elastic member is connected, and the elastic member is elastically deformed so that the connecting portion The rod rotates to drive Measuring axis. The measuring device according to claim 1, wherein one end of the body is provided with a ring, and the other end of the body is provided with a sleeve at a position corresponding to the ring, and the head of the measuring shaft is elastic Resisting on the ring, the tail of the measuring shaft is passed through the sleeve. The measuring device of claim 1, wherein the watch body comprises a display screen and a button, and the button is used to zero the data on the display screen when triggered. The measuring device of the first aspect of the invention, wherein the first support arm has a receiving slot at one end thereof, and a first through hole and a second through hole are respectively defined in the top end and the middle position of the receiving slot, A through hole is used to mount the connecting rod, and the second through hole is for mounting the lever. The measuring device of claim 4, wherein the other end of the first supporting arm is provided with a plurality of circular holes for assisting in holding the first supporting arm, and the other end of the first supporting arm is adjacent to A third through hole is defined in the receiving slot, and one end of the elastic member is installed in the third through hole. The measuring device of claim 1, wherein the connecting rod comprises a flat plate and a convex portion formed by an outward portion protruding from an intermediate position of the flat plate. The measuring device of claim 6, wherein the flat plate has a card slot at one end thereof, the head of the measuring shaft is locked in the card slot, and the other end of the plate is provided with a first fixing hole, One end of the elastic member is mounted in the first fixing hole, and the protrusion is provided with a second fixing hole. The measuring device of claim 1, wherein the second supporting arm is provided with a plurality of grooves, and the second supporting arm is provided with a through hole and a positioning hole at corresponding positions of the groove, the measuring arm Mounted in the recess, each of the measuring arms includes an overhang, each of the elongate portions having a different length. The measuring device of claim 8, wherein the overhanging portion is provided with a receiving hole, and the fixed measuring head is fixedly mounted in the receiving hole. The measuring device of claim 1, wherein the second supporting arm is provided with a threaded hole on a side away from the end of the first supporting arm, and a measuring table receiving hole is opened at a position close to the threaded hole. The measuring table receiving hole is vertically connected to the threaded hole.